title: Measurement properties of the Danish version of the Illness Perception Questionnaire-Revised for patients with colorectal cancer symptoms.
abstract: The aim of this study was to validate the measurement properties of the Danish version of the Illness Perception Questionnaire-Revised adapted to measure symptom representations among patients with colorectal cancer symptoms. A total of 488 colorectal cancer patients completed a questionnaire derived from the Illness Perception Questionnaire-Revised to retrospectively assess cognitive and emotional representations of experienced symptoms. A confirmatory factor analysis indicated no good comparative fit with the Illness Perception Questionnaire-Revised. Using exploratory factor analysis, a 7-factor structure was conducted, which fairly supported the Illness Perception Questionnaire-Revised. The modified Illness Perception Questionnaire-Revised is a promising tool for measuring symptom representations among Danish colorectal cancer patients.
authors.affiliation: The Research Centre for Cancer Diagnosis in Primary Care (CaP), The Research Unit for General Practice, Aarhus University, Denmark line.hvidberg@alm.au.dk.
authors.forename: Line
authors.initials: L
authors.lastname: Hvidberg
authors.affiliation: The Research Centre for Cancer Diagnosis in Primary Care (CaP), The Research Unit for General Practice, Aarhus University, Denmark.
authors.forename: Line F
authors.initials: LF
authors.lastname: Jensen
authors.affiliation: The Research Centre for Cancer Diagnosis in Primary Care (CaP), The Research Unit for General Practice, Aarhus University, Denmark.
authors.forename: Anette F
authors.initials: AF
authors.lastname: Pedersen
authors.affiliation: Unit for Health Promotion Research, University of Southern Denmark, Denmark.
authors.forename: Arja R
authors.initials: AR
authors.lastname: Aro
authors.affiliation: The Research Centre for Cancer Diagnosis in Primary Care (CaP), The Research Unit for General Practice, Aarhus University, Denmark.
authors.forename: Peter
authors.initials: P
authors.lastname: Vedsted
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000523:psychology*; D003718:Denmark; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000295:instrumentation*; D011795:Surveys and Questionnaires / Q000592:standards*; D055815:Young Adult
keywords: cancer; health care; perception; physical symptoms; validation